Photoproton Scintillation Spectrometer
- 1 May 1958
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 29 (5) , 415-419
- https://doi.org/10.1063/1.1716211
Abstract
An apparatus is described for the measurement of the energy and angular distribution of protons from (γ, p) reactions. A method is presented for obtaining energy spread of 3% for protons of 3 to 15 Mev with a NaI scintillator of 1-in. diam aperture. Energy calibration of the detector with monoenergetic protons gives an energy vs pulse-height line having an intercept of 0.46±0.10 Mev. The ratio of α particle to proton energy for equal pulse heights is found to be 1.93±0.04 for 4.48-Mev α particles. A CsI scintillator, similarly mounted, yields an intercept of −0.17±0.15 Mev and an α-proton energy ratio of 1.66±0.07 for 5.3-Mev α particles. A modification of the phoswich to provide discrimination against electrons is described.Keywords
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